SEC ownership of Stagwell Inc

Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0000876883.

Comparable stake leader

Steven A. Ballmer

Disclosed value leader

Steven A. Ballmer

Comparable rows

50/50

Latest evidence

01 Jul 2026

Ownership snapshot CIK-linked ownership evidence from parsed SEC filings. 3 signals
Comparable ownership rows
50 of 50
Meaning: Rows with safely comparable ownership %
Latest 13D/G holder
Steven A. Ballmer
Source: Latest parsed Schedule 13D/G stake
Latest parsed ownership date
01 Jul 2026
Freshness: Most recent filing date in this holder set
Issuer Names, identifiers, and filing context for this profile. 2 identity fields
Issuer CIK
0000876883
Issuer location
New York, NY

Ownership snapshot

Top shareholders of Stagwell Inc (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader
Steven A. Ballmer
Disclosed value leader
Steven A. Ballmer
Comparable rows
50/50
Latest evidence
01 Jul 2026
3/4/5 13D/G 13F Lead comparable stake: 44% 13D/G row: Steven A. Ballmer Showing 1-8 of 50 holder rows.

Quick read

Steven A. Ballmer leads the comparable SEC ownership view at 44%.

50 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens Steven A. Ballmer's linked filing trail.
Comparable ownership Top 5
Steven A. Ballmer 44%
HOTCHKIS & WILEY CAPITAL MANAGEME... 8.1%
GOLDMAN SACHS GROUP INC 4.9%
BlackRock, Inc. 2.9%
Stagwell Group LLC 0.8%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-8 of 50 holder rows
Holder Evidence Ownership % Position 12M Net Δ As of
Steven A. Ballmer
3/4/5 13D/G
10%+ Owner
44%
from 13D/G
$702,070,029
116,044,633 shares
04 Apr 2025
HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC
13F 13D/G
Company · Hotchkis and Wiley Capital Management, LLC
8.1%
from 13D/G
$145,035,179
23,058,057 shares
31 Mar 2026
GOLDMAN SACHS GROUP INC
3/4/5 13D/G 13F
10%+ Owner · The Goldman Sachs Group, Inc. · Company
4.9%
from 13D/G
$82,299,679
12,981,022 shares
13 Jun 2024
BlackRock, Inc.
13F 13D/G
Company
2.9%
from 13D/G
$49,204,820
7,822,706 shares
31 Mar 2026
Stagwell Group LLC
13D/G
0.8%
-$152,192,211 15 Dec 2025
Polpat LLC
3/4/5
10%+ Owner
45%
$698,588,690
116,044,633 shares
04 Apr 2025
Mark Jeffery Penn
3/4/5
Chief Executive Officer, Director, 10%+ Owner
9.7%
$148,025,741
25,034,990 shares
+$117,600 13 May 2026
Eli Samaha
3/4/5
Director
3.2%
$51,484,190
8,185,086 shares
01 Jul 2026
How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Forms 3/4/5 flow

Insider trading overview

Net insider flow leans to selling over the last 12 months. Net value: -$12,956,019.

Buys
$117,600
Insiders: 1
Sells
$13,073,619
Insiders: 1
Net
-$12,956,019
Shares: -2,143,790
Window
Last 12 months
4 rolling buckets
Buy value Sell value
Shares: 20,000 Shares: 2,163,790
Window (months) Buy shares Sell shares Buy value Sell value Net value
0-3 20,000 2,163,790 $117,600 $13,073,619 -$12,956,019
3-6 0 0 $0 $0 $0
6-9 0 0 $0 $0 $0
9-12 0 0 $0 $0 $0

Reporting owners

Insider holders from Forms 3/4/5

Showing 1-20 of 20 reporting-owner rows connected to Stagwell Inc. Open a relationship link for the CIK-to-CIK filing trail.

Rows
20
Largest Forms 3/4/5 holder
Steven A. Ballmer
Net 12M change
-$12,956,019
Latest report
01 Jul 2026
Name Relationship Holdings Value Past Year Net Change Change % Valuation Report Date
Steven A. Ballmer 10%+ Owner $702,070,029 Mixed 04 Apr 2025
Polpat LLC 10%+ Owner $698,588,690 Mixed 04 Apr 2025
Mark Jeffery Penn Chief Executive Officer, Director, 10%+ Owner $148,025,741 +$117,600 +0.08% Mixed 13 May 2026
GOLDMAN SACHS GROUP INC 10%+ Owner $82,299,679 Filing P/S 13 Jun 2024
Eli Samaha Director $51,484,190 Median 01 Jul 2026
Jay Leveton President $9,826,230 Mixed 01 Apr 2026
Ryan Greene Chief Financial Officer $6,803,354 Mixed 01 Apr 2026
Frank P. Lanuto EVP, Finance $2,708,947 Mixed 01 Apr 2026
Charlene Barshefsky Director $1,498,818 Median 11 Jun 2026
Irwin D. Simon Director $1,439,724 Median 11 Jun 2026
Brandt A. Vaughan Director $1,386,970 Median 01 Jul 2026
Desiree G. Rogers Director $1,352,249 Median 11 Jun 2026
Wade Oosterman Director $1,282,757 Median 11 Jun 2026
Vincenzo DiMaggio SVP, Chief Accounting Officer $984,054 Mixed 31 Mar 2025
Rodney E. Slater Director $884,877 Median 11 Jun 2026
Peter McElligott General Counsel $597,484 Mixed 01 Apr 2026
Bradley J. Gross Director $53,103 -$13,073,619 -100% Filing P/S 04 May 2026
Indaba Capital Management, L.P. 10%+ Owner Mixed 24 May 2021
Ga Secondary C.v. AlpInvest Former 10% holder Mixed 09 May 2023
AlpInvest Partners B.V. Former 10% holder Mixed 09 May 2023

Recent insider transactions for Stagwell Inc

Showing up to 300 recent insider transactions from the last 12 months.

Insider Symbol Class Transaction % SEC-reported value SEC-reported price Shares Shares owned Date Ownership
Brandt A. Vaughan STGW Class A Common Stock Award 1.08% 2,355 220,504 01 Jul 2026 Direct
Eli Samaha STGW Class A Common Stock Award 1.6% 2,691 170,764 01 Jul 2026 Direct
Brandt A. Vaughan STGW Class A Common Stock Award 11.8% 22,970 218,149 11 Jun 2026 Direct
Rodney E. Slater STGW Class A Common Stock Award 19.5% 22,970 140,680 11 Jun 2026 Direct
Irwin D. Simon STGW Class A Common Stock Award 11.2% 22,970 228,891 11 Jun 2026 Direct
Eli Samaha STGW Class A Common Stock Award 15.8% 22,970 168,073 11 Jun 2026 Direct
Desiree G. Rogers STGW Class A Common Stock Award 12% 22,970 214,984 11 Jun 2026 Direct
Wade Oosterman STGW Class A Common Stock Award 12.7% 22,970 203,936 11 Jun 2026 Direct
Charlene Barshefsky STGW Class A Common Stock Award 10.7% 22,970 238,286 11 Jun 2026 Direct
Mark Jeffery Penn STGW Class A Common Stock Purchase 0.09% $117,600 $5.88 20,000 23,034,990 13 May 2026 Direct
Bradley J. Gross STGW Class A Common Stock Sale -99.6% $13,073,619 $6.04 -2,163,790 8,789 04 May 2026 See Footnotes
Peter McElligott STGW Class A Common Stock Award 42.4% 36,390 122,185 01 Apr 2026 Direct
Mark Jeffery Penn STGW Class A Common Stock Award 1.72% 389,432 23,014,990 01 Apr 2026 Direct
Jay Leveton STGW Class A Common Stock Award 5.07% 97,040 2,009,454 01 Apr 2026 Direct
Frank P. Lanuto STGW Class A Common Stock Award 15.5% 74,189 553,977 01 Apr 2026 Direct
Ryan Greene STGW Class A Common Stock Award 5.28% 69,825 1,391,279 01 Apr 2026 Direct
Brandt A. Vaughan STGW Class A Common Stock Award 1.45% 2,782 195,179 01 Apr 2026 Direct
Eli Samaha STGW Class A Common Stock Award 2.24% 3,180 145,103 01 Apr 2026 Direct
Ryan Greene STGW Class A Common Stock Disposed to Issuer -23.4% -403,717 1,321,454 11 Mar 2026 Direct
Mark Jeffery Penn STGW Class A Common Stock Disposed to Issuer -16.8% -4,572,207 22,625,558 11 Mar 2026 Direct
Jay Leveton STGW Class A Common Stock Disposed to Issuer -25.8% -664,754 1,912,414 11 Mar 2026 Direct
Frank P. Lanuto STGW Class A Common Stock Disposed to Issuer -7.79% -40,534 479,788 11 Mar 2026 Direct
Mark Jeffery Penn STGW Class A Common Stock Tax liability -0.28% -75,447 27,197,765 07 Mar 2026 Direct
Peter McElligott STGW Class A Common Stock Tax liability -9.03% -8,512 85,795 07 Mar 2026 Direct
Jay Leveton STGW Class A Common Stock Tax liability -1.69% -44,230 2,577,168 07 Mar 2026 Direct
Frank P. Lanuto STGW Class A Common Stock Tax liability -3.02% -16,208 520,322 07 Mar 2026 Direct
Ryan Greene STGW Class A Common Stock Tax liability -0.54% -9,359 1,725,171 07 Mar 2026 Direct
Mark Jeffery Penn STGW Class A Common Stock Tax liability -0.83% -229,529 27,273,212 03 Mar 2026 Direct
Mark Jeffery Penn STGW Class A Common Stock Disposed to Issuer -0.21% -57,689 27,502,741 03 Mar 2026 Direct
Peter McElligott STGW Class A Common Stock Tax liability -9.69% -10,121 94,307 03 Mar 2026 Direct
Peter McElligott STGW Class A Common Stock Disposed to Issuer -1.72% -1,831 104,428 03 Mar 2026 Direct
Jay Leveton STGW Class A Common Stock Tax liability -2.25% -60,467 2,621,398 03 Mar 2026 Direct
Jay Leveton STGW Class A Common Stock Disposed to Issuer -0.44% -11,855 2,681,865 03 Mar 2026 Direct
Frank P. Lanuto STGW Class A Common Stock Tax liability -7.82% -45,534 536,530 03 Mar 2026 Direct
Frank P. Lanuto STGW Class A Common Stock Disposed to Issuer -2.06% -12,264 582,064 03 Mar 2026 Direct
Ryan Greene STGW Class A Common Stock Tax liability -1.22% -21,405 1,734,530 03 Mar 2026 Direct
Ryan Greene STGW Class A Common Stock Disposed to Issuer -0.26% -4,513 1,755,935 03 Mar 2026 Direct
Brandt A. Vaughan STGW Class A Common Stock Award 1.9% 3,579 192,397 02 Jan 2026 Direct
Eli Samaha STGW Class A Common Stock Award 2.97% 4,090 141,923 02 Jan 2026 Direct
Bradley J. Gross STGW Class A Common Stock Gift -70% -5,341,715 2,293,238 28 Nov 2025 See Footnotes
Eli Samaha STGW Class A Common Stock Award 2.65% 3,552 137,833 01 Oct 2025 Direct
Brandt A. Vaughan STGW Class A Common Stock Award 1.67% 3,108 188,818 01 Oct 2025 Direct
Bradley J. Gross STGW Class A Common Stock Gift -41.1% -5,341,715 7,655,879 04 Sep 2025 See Footnotes
Mark Jeffery Penn STGW Class A Common Stock Gift -5.59% -1,750,000 29,560,430 01 Aug 2025 Direct
* marks a reported price that did not pass the local price check.
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